Perhaps you should try some spelling variations:
vat danh » va danh, van danh, luat danh
danh dai » danh dau, danh di, danh sai
hieu va » lieu va, hieu qua
cua tre » cuu tre, cua triet, dua tren
te sac » te sach, te cac, te san
ve cac » va cac, vien cac
cua te » cua tu
x hoi » xa hoi, o hoi, x ho
va am » va lam, va cam
thuc » thu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sac) or (ve cac)) ky nang x hoi. hieu va am thuc vat danh dai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sac) OR (ve cac)) ky nang x hoi. hieu va am thuc vat danh dai ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: ((te sac) or (ve cac)) ky nang x hoi. hieu va am thuc vat danh dai ((cua tre) or (cua te))*.